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pushrod question after 30thousand mill..anyone chime in..

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Old 12-12-2010, 01:38 PM
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Default pushrod question after 30thousand mill..anyone chime in..

Guys milling my 799 heads on my truck. Its a 5.3 and trying to get as much possible out of her.. trying to raise my compression to 10.5+.. its a l33 engine so its got flat top pistoms comes with 9.9 stock.. anyways i need pushrods but since all the work will b at my cousins shop (two hours away from my house )next weekend it will b impossible to use the pushrod checker and order some.. so is there a formula i can use to determine what size i will need? Truck has stock pushrods im assuming 7.4.. anyone?? All help will b appreciated!!!
Old 12-12-2010, 01:42 PM
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a quick guess would be 7.375 the lifter will eat some...but would still check it with a push rod length tool.
Old 12-12-2010, 01:50 PM
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Is there any sort of calculator? I dont mind buying two sets i just want to male sure i have the rt ones when i switch them out.. since i wont have acxess to get them that day and i need to come back home so it needs to b put back together..
Old 12-12-2010, 01:53 PM
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Just get a checker like said above
Old 12-12-2010, 01:53 PM
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my heads are mill .030 also on ls7 lifters- on a flat top- piston, im running 7.4's but im switching to 7.350's
Old 12-12-2010, 01:59 PM
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I have a checker and ill use it but i need to have the pushrods available because i wont b able to order them and wait for them baxause i need to drive back hom.. so shut it sloxcab.. lol..i guess ill get some 7.375 just incase.. im on stock lifters and flat top piston also..
Old 12-12-2010, 02:01 PM
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I say 7.375 and u will right in the ball park
Old 12-12-2010, 02:07 PM
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Any particular ones i should order? Hardened offcourse.. any brand?
Old 12-12-2010, 02:18 PM
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Originally Posted by 05gmcsierra
Any particular ones i should order? Hardened offcourse.. any brand?
Just get whatever you can get the best deal on including shipping imo.

Yeah Hardened chromemoly pushrods, we know what you mean.

Texas speed, Comp, Thunder Racing, manley,SLP etc, your pick.

Last edited by jrmchevyman; 12-14-2010 at 06:09 PM.
Old 12-13-2010, 02:44 PM
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so after some more investigating i came to find out my stock pushrods r 7.380, when i did the cam i should have gone 7.4 but i didnt. does that mean i can reuse my stock pushrods??

if im wrong can someone pls correct me?


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